TWI379840B - Polymerizable composition and its uses - Google Patents

Description

1379840 IX. Description of the Invention: [Technical Field] The present invention relates to a polymerizable composition and an optical film comprising a coating formed from the polymerizable composition, which can be used for a backlight module of a display As a bright film in the group. ° [First Technology] Liquid Crystal Display (LCD), which has the advantages of _, thin, short, small, low heat consumption, low power consumption, and almost no light damage, has gradually replaced traditional cathode ray. Tube...Bucks the "Quhan 'Tube ' CRT) display. At present, the use of a variety of optical films in the backlight module to improve the brightness of the panel has become the most economical and simple product development program, in this way not only No need to change any component design, no need to consume extra energy and increase the brightness of the LCD panel to make the light source work most efficiently. Zengfang film is often referred to as BEF (Brightness Enhancement Film) or concentrating film, which can be used in On the polyester substrate, a special acrylic resin coating is applied to harden it into a 稜鏡 microstructure using a high energy material line (UV). The main function of the brightness enhancement film is by refraction and internal total reflection. The effect is to collect the scattered light from all directions in the Light Guide and concentrate it in the direction of the positive viewing angle (〇n_Axis) of about ±35 degrees to improve the brightness of the LCD. The linear 稜鏡 columnar structure is used to achieve the concentrating effect. However, the refracted light generated by the brightness enhancing film of the linear prism columnar structure is generally easy to reflect or refract light with other cymbals from the display. I32725.doc 1379840 The line, or other reflected or refracted light of the brightness enhancing film itself, causes optical interference, resulting in the appearance of moire or Newtonian rings. For this reason, U.S. Patent No. 6,28M63 discloses a circular arc shape. Columnar: Brightening film, which can further integrate the light collecting and diffusing effects, achieve the purpose of collecting light and homogenizing, and avoid optical interference. In addition, the curved film structure can also be used as a brightness enhancement film. Reducing the prism structure and other diaphragms or panels: Injury caused by contact, increasing wear resistance. However, curved columnar structure • Xiaoliang film will reduce the brightness, to compensate for the loss of brightness, generally improve: Polymer coating of the rate. Generally speaking, the better the brightness enhancement effect of the polymer (four) layer ^ film, for example...

It is currently known to obtain a coating having a higher refractive index by adding a self-priming material, however, the presence of dentate causes environmental pollution. ▲ D US: Patent No. (10) 591 discloses a high refractive index polymerizable substance by adding 4,4·-bis(methyl propyl oxime. ^ L n ) a thioether (4 4, » b^ethacroyl thio ) diphenyl sulfide) ^ ^ 5 ; but the disadvantage is that the price of such a monomer is too expensive. '' In summary, provide a polymer coating that does not have the above disadvantages and is more economical to provide a brightness enhancement film rate. The effect of the drought is the industry's eagerly awaited [invention] The main purpose of the present invention is to provide a combination composition. Another object of the present invention is to provide an optical film: a poly-containing substrate and at least - a coating formed from the polymerizable composition: 132725.doc 1379840 An optical film for use as a brightness enhancement film for a backlight module of a display. The invention is described with reference to the drawings and the embodiments described hereinafter The basic spirit of the present invention and the technical means and preferred embodiments of the present invention can be easily understood by those skilled in the art. [Embodiment] The terminology used herein is merely describing the embodiment. Like, not to limit The scope of the invention is to be understood as being in the singular and "a" In particular, the present invention provides a polymerizable composition having a high refractive index of at least 1.53 and comprising: (a) at least one monomer of formula (1):

The parent 1 and the 2 series are each independently H4Cl-C4 alkyl, preferably each independently being a hydrazine or a methyl group; the γι, γ2, 丫3 and Υ4 systems are each independently η, C丨-C4 alkyl or hydrazine, Preferably, each of them is independently hydrazine or methyl; and a and b are each independently an integer selected from 〇 to $, preferably each independently 132725.doc 丄3/outer 41) is an integer selected from 1 to 3; And (b) - a photoinitiator. The monomer of the above formula (1) is an anthracene derivative dipropionic acid monomer (fiu_e envatlve dl(10)ylate__〇' has a high refractive index of ΐ6 to w, so that the coating obtained by curing the polymerizable composition can be effectively increased: The refractive index 4 (1) monomer is used in an amount of up to W% by weight, preferably % by weight, based on the total weight of the polymerizable composition.

weight. /. Up to 25% by weight 'preferably 4% by weight. /〇 to 2〇% by weight. In general, when the amount of the monomer of the formula (1) is less than, the refractive index cannot be effectively increased; when the amount of the monomer of the formula (I) is more than 5% by weight, the resulting polymerizable composition is too rigid and is not easy to be used. Coating. Preferably, in the monomer of the formula (1), Xi, X2'Yi, Y2, Y3W "is independently from fluorene or methyl, and each of a and b is independently an integer selected from 丨 to 3. According to the invention - specific In an embodiment, the monomer of the formula (1) is a monomer having the formula (6):

A photoinitiator (a component which is a compound which generates a radical after light irradiation and transmits a radical by a radical emission by light irradiation) which can be selected, for example, from the following group, can be used in the polymerizable composition of the present invention. : Diphenylheptone 132725.doc 1379840 (benzophenone), benzhydrin, benzil, 2,2-dimethoxy-1,2-diphenylethanone (2 2_dimeth〇xy_ l,2-diphenylethan-l-〇ne), 1-hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzhydryldiphenylphosphine oxide (2,4,6-trimethylbenzoyl diphenyl phosphine oxide; TPO) and combinations thereof, preferably benzophenone. The amount of the photoinitiator of the present invention is not particularly limited, and may be included in the polymerizable composition as needed. The type of the polymerizable monomer and the amount thereof are adjusted. Generally, it is preferably from 〇1% by weight to 5% by weight based on the total weight of the polymerizable composition. Generally, the polymerizable composition will add some monomers or oligomers as a cross-linking agent, which can be used in the polymerization. Increasing the degree of cross-linking between molecules and molecules at the same time makes the composition easy to cure and can increase the hardness of the cured coating. The polymerizable composition of the present invention may be added with a crosslinking agent (component (c)) as needed to enhance the present. The film-forming property of the inventive polymerizable composition. The type of the above-mentioned crosslinking agent is well known to those skilled in the art, such as, but not limited to, acrylate, and the acrylate which can be used in the present invention, for example, but not Limited to (meth)acrylic acid vinegar; urethane formic acid urethane acrylate - such as aliphatic urethane acrylate, aliphatic urethane hexamate Acryl urethane hexaacrylate or aromatic urethane hexaacrylate; polyester acrylate 'p. 〇 二 acrylate (p〇iyester diacrylate), epoxy Epoxy acrylate, such as double sided A epoxy 132725.doc 1379840

Bisphenol-A epoxy diacrylate; no volac epoxy acrylate; or a mixture thereof. The above (meth) acrylate may have two or more functional groups, preferably a polyfunctional group. Examples of (meth) acrylates suitable for use in the present invention, such as, but not limited to, tripropylene giyC〇i di(meth)acrylate, 1,4-butanediol di(meth)acrylate Acetylene (14_butanediol di(meth)acrylate), 1,6-hexanediol di(meth)acrylate, polyethylene glycol di(meth)acrylate Polyethyleneglycol di(meth)acrylate, allylated cyclohexyl di(meth)acrylate, isocyanurate di (meth)acrylate) >ethoxylated trimethylol propane tri(meth)acrylate, propoxylated glycerol tris(mercapto) acrylate ( Propoxylated glycerol tri(meth)acrylate) 'trimethylol propane tri(meth)acrylate, tris(propyleneoxyethyl)isocyanate (tris(aeryloxyethyl) ) isocyanurate) or a mixture of them. Commercially available acrylates useful in component (c) of the present invention include those manufactured by Sartomer under the trade designations SR454®, SR494®, SR9020®, SR9021® or SR9041®; manufactured by Eternal, under the trade name 624 -100®; and manufactured by UCB under the trade names Ebecryl 600®, Ebecryl 830®, Ebecryl 3605® or Ebecryl 6700®. -12- 132725.doc C.S3 Heavy Dan. The amount of 77 (c), based on the total weight of the composition, may be from 1 to 6% by weight, preferably from 1% to 5% by weight, more preferably from "weight/twist to 40 weight" 〇/〇. The viscosity of the denier-polymerizable composition is related to the components contained in the composition, the operating temperature, etc. + iron, A, "vintage". When the viscosity of the δ composition is too high, the bean operation=good is not conducive to coating, and the flatness is prone to be disadvantageous, etc.: according to X's need, a formula (9) can be added to the polymerizable composition: dilute acid The vinegar monomer (component (4)) produces a dilution to adjust the viscosity of the polymerizable composition. The monomer structure of the formula (II) is as follows: ch2 (II) wherein R3 is a chain hydrocarbon having 2 to 6 carbon atoms, which may optionally be separated by one or more heteroatoms selected from oxygen and sulfur, and (1) an integer.

R3—〇—〇 When added, the amount of the component (4) is from 1% by weight to 1% by weight, preferably from 8% by weight to 8% by weight of the polymerizable composition. More preferably from 12% by weight to 60% by weight. Preferably, the monomer of formula (II) is a formula (11 〇 monomer: 132725.doc

(π,). -13- 1379840 The inventors have further discovered that the addition of an acrylate monomer of the formula (i) to the polymerizable composition of the present invention not only adjusts the viscosity of the composition to facilitate coating, but also produces a composition. It still has the property of high refractive index after curing.

In the polymerizable composition of the present invention, other suitable acrylate monomers ((component (dl)) may be selected as needed to produce a dilution effect. The acrylates of the component (d-Ι) which can be used in the present invention. Monomers such as, but not limited to, acrylate, methacrylate, 2-phenoxyl ethyl acrylate, trimethylolpropane triacrylate, 2-(p-Phenylphenyl-phenoxy) ethyl acrylate, propoxylated neopentyl glycol diacrylate, ethoxylated triacetate Ethoxylated trimethylolpropane triacrylate, propoxylated trimethyloipropane triacrylate, dipentaerythritol hexaacrylate (DPHA), and mixtures thereof Groups of such commercially available examples include those produced by Eternal, Inc. under the trade names EM2108®, EM210®, EM231®. Part (d-1), based on the total weight of the polymerizable composition, is from 1% by weight to 80% by weight, preferably from 8% by weight to 70% by weight, more preferably from 12% by weight to 60% by weight. It is avoided that the molecular weight of the polymerizable composition of the present invention is too high, and the viscosity is too large, and component (d) and component (dl) may be simultaneously selected as needed to achieve the effect of dilute-14-132725.doc i S] 1379840. In order to further increase the refractive index to increase the brightness of the optical group, the composition of the invention may optionally add a monomer of the formula (in) having a high refractive index (component (e)):

G-S

(III) wherein 'X3 and X4 are each independently H'C1-C4 alkyl or halogen, preferably hydrazine, methyl or halogen; c and d are each independently an integer from 1 to 4; and G is selected from the group consisting of group:

H2C=C—C :=C—( R4 八 / \ 03⁄4 and wherein R 4 is H 4 C]-C 4 alkyl, preferably !^ or methyl; and the claw is an integer from 〇 to 6. Preferably, III) The monomer is a monomer of the formula (ΙΠ!): ? _/=s

Ch2 Η 2 〇 = (ρ - C_S -, /) - S - R4 (III.) wherein R4 is as previously defined herein. More preferably, the monomer of formula (III) is a monomer of the formula (mo:

(ΙΠ2) 132725.doc • 15- 1379840: When added, the amount of the monomer is from 1% by weight to 60% by weight, preferably 15% by weight based on the total weight of the polymerizable composition. to %. Further, the composition of the present invention may be added with any conventional additives as needed to change its physical or chemical properties. Additives useful in the present invention are generally selected from the group consisting of inorganic fillers, antistatic agents, slip agents (10) p agents), leveling agents, antifoaming agents, and combinations thereof.

• To increase the hardness of the coating formed after curing of the composition, inorganic fillers may be added to the composition as needed to avoid optical properties due to collapse of the concentrating structure. In addition, the inorganic filler also has the effect of improving the brightness of the liquid crystal display panel: brightness. The inorganic fillers useful in the present invention are well known to those of ordinary skill in the art, such as, but not limited to, oxidative, cerium oxide, barium titanate, oxidized, oxidized, calcium carbonate, diemulsified. Titanium, sulfuric acid, sulfuric acid, or a mixture thereof, preferably two "I-too-tano-dioxide, zinc oxide or a mixture thereof. The above inorganic filler has a handle of about 10 nm to about 350 metre", Nai Not limited to the particle size, preferably (four) nanometer to 150 static = add: antistatic agent in the polymerizable composition, so that it has an antistatic effect, thereby improving the work yield. Can be used in the present invention The electric agent is the technical knowledge of the present invention. It is known to those who have the usual knowledge in the field of the page: ': but not limited to ethoxyglycerin fatty acid vinegar, four-level recorded person, fat = what creature Epoxy wax (e.g., polyepoxyhydrazine- or other alcoholic street organisms (e.g., polyglycolic acid or polyethylene glycol:) 132725.doc 1379840. According to a preferred embodiment of the present invention, the polymerizable of the present invention Adding oligomers as crosslinkers to the composition to increase molecules and molecules The degree of cross-linking and the hardness of the coating formed after curing of the polymerizable composition are such that the hardness of the coating reaches a pendulum hardness of 50 or more, preferably a pendulum hardness of 5 to 7 inches. In general, When the pendulum hardness is less than 50, the abrasion resistance of the coating is not good; when the pendulum hardness is greater than 70, it is easy to embrittle. The type of the above crosslinking agent is as described herein before. The polymerizable composition of the present invention can be Coating on a substrate or an optical thin sheet (such as any conventional diffusion film or concentrating film) to form a coating' to increase surface wear resistance and provide superior smoothness (smoothness) And because the polymerizable composition of the present invention comprises a monomer of the formula (I) having a high refractive index, the formed coating layer can have a high refractive index. The refractive index of the coating of the present invention is at least 153. Preferably, the 153 to 1.62' is effective for enhancing the brightness of the optical sheet. The material of the substrate may be any one of ordinary skill in the art to which the present invention pertains, such as glass or plastic. The plastic substrate may be one or more high. Molecular resin layer The type of the resin constituting the above polymer resin layer is not particularly limited. It is, for example, selected from the group consisting of polyester resins such as polyethylene terephthalate (PET). Or polyethylene naphthalate (PEN), polyacrylate resin, such as polymethyl methacrylate (PMMA), polyolefin resin (p〇iy〇iefin Resin, such as polyethylene (PE) or polypropylene (PP), polycyclic hydrocarbon resin (p〇iyCyCi〇〇lefin 132725.doc 17 Ϊ379840 resin), polyimide resin, polycarbonate resin (polycarbonate resin), polyurethane resin, triacetyl cellulose (TAC), polylactic acid (Polylactic acid) and combinations thereof, but not limited thereto. Among them, preferred are polyester resins, polycarbonate resins and combinations thereof; more preferably polyethylene terephthalate. The thickness of the substrate generally depends on the desired optical product to be produced, typically from 30 microns to 300 microns. • According to a preferred embodiment of the invention, the substrate used in the present invention comprises a single layer or a plurality of layers of textured microstructures. The above-mentioned single-layer or multi-layered textured microstructures are used to provide the desired optical properties of the optical film, and the form thereof is not particularly limited, and may be any one of ordinary skill in the art to which the present invention pertains, for example, having a diffusion effect. Diffusion structure and/or concentrating layer having a concentrating effect "The above single layer or multi-layer structure can be prepared together with the substrate in an integrated manner, for example, imprinting (emb〇ss), injection (Injecti〇n) Or a biaxial = method; or in any conventional manner, after processing on a substrate, for example, the microparticle-containing glue is directly formed on the substrate by a coating method - a concave-convex microstructure layer, Or coating a coating on the substrate and then engraving the desired concave and convex microstructure on the coating. Further, the present invention provides an optical film comprising a coating formed from the polymerizable composition of the present invention, which may be a planar film or a special microstructure, such as a diffusion microstructure or a concentrating light. microstructure. - Figure 1 is a schematic illustration of one embodiment of an optical film of the present invention. The optical film of the present invention comprises a substrate 1 and a coating 2 in a concentrating structure. The coating thickness of the optical crucible of the present invention is generally from 1 μm to 100 μm, preferably from 10 μm to 40 μm compared to 132,725.doc 1379840. When the coating has the form of a particular structure, the thickness of the coating is calculated as the highest point of its structure. Taking the optical film of Fig. 1 as an example, the thickness of the coating 2 is indicated by the symbol a. According to an embodiment of the invention, the coating is a concentrating structure. The φ • optical 聚 concentrating structure of the present invention is well known in the art to which the present invention pertains, such as, but not limited to, a regular or irregular columnar structure (i.e., triangular prism), Curved columnar structure (ie, the peak of the columnar structure is in the form of φ arc), conical structure, solid angle structure, orange-shaped block, lenticular structure, lenticular structure and capsule structure, or a combination thereof Preferably, the columnar structure or the curved columnar structure may be linear (丨inear), zigzag or serpentine, and the phase The adjacent two columnar structures may be parallel or non-parallel. The optical film of the present invention may be used in any manner known to those of ordinary skill in the art to which the present invention pertains. It can be produced by the method comprising the following steps: φ (1) mixing the monomer of the formula (1), the photoinitiator and, if necessary, the monomer of the formula (H), a crosslinking agent and other additives to form a gel. State polymerizable combination. (7) will step (1) The resulting colloidal polymerizable composition is applied in a suitable manner to the substrate_L' to form a "coating", for example, to form a pattern on the roll; and to cure the above coating, for example At normal temperature or under heating, the energy ray is achieved. 上述 If necessary, the above steps can be repeated to obtain an optical film containing a plurality of coatings 132725.doc •19· The optical properties of the film may be such that it is resistant to the substrate in relation to the coating formed by the composition of the present invention. The scratch-resistant layer may be smooth or non-smooth mK7i^ to the thickness of the layer. Preferably, the film is between 〇·5~3〇 microns, and the obtained haze is 1%~9〇% Γ40% according to the standard method. According to the standard method of ISK7136, the optical film of the invention is measured: Wang Xianxian transmittance, The optical film of the present invention has a total light transmittance of not less than 60%, preferably more than 80%, more preferably 9% by weight or more than 9% by weight. 2 The optical film obtained by the polymerizable composition of the present invention has At least M3's refractive index' provides good optical gain values; The present invention will provide further explanation for the present invention. The following embodiments will provide further explanation for the present invention. Examples 1-11 The optical films of Examples 1 to 11 were prepared in the manner described below, and the compositions of the respective examples were as listed in Table 1. First, the components were mixed in the weight ratios listed in Table 1, Further, at a temperature of 5 〇〇c, stirring at a rotation speed of 1, rpm to form a colloidal polymerizable composition. The colloidal polymerizable composition is coated on a polyethylene terephthalate (PET). The substrate (Model U34®, manufactured by T0RAY) was used to form a coating, which was then embossed by a roller to form a pattern on the coating. According to 132725.doc -20. 1379840, the coating is irradiated with energy rays at room temperature to cure it. An optical film having a coating having a thickness of 25 μm was obtained. Table 1 and parts (8) (b) (c) (d) (d-1) Examples (g) (g) (g) (g) (g) 1 2.5 3 30 7.5 0 2 5.0 3 30 15.0 0 3 7.5 3 30 22.5 0 4 10.0 3 30 30.0 0 5 12.5 3 30 37.5 0 6 15.0 3 30 45.0 0 7 10.0 3 30 0 0 8 10.0 3 30 0 30 9 (Comparative example) 0 3 30 0 0 1〇 (Comparative example) 0 3 30 0 50 π (Comparative example) 0 3 30 30 0 (a) : Formula (I) monomer (manufactured by Shin-Nakamura Co., a_BPEF)

(b): Photoinitiator (produced by Ciba, 1184®) (c): Parent agent (produced by Changxing Co., Ltd., 624-1〇〇®) (d). Formula (II) monomer (new Produced by Nakamura Co., Ltd., a_len1〇) (d-1): Acrylate monomer (produced by Changxing Co., Ltd., eM21〇8) The optical film of each of the above examples was subjected to a refractive index test (using AUTOMATIC REFRACTOMETER supplied by Index InStrUmentS) GPR11-3 7 instruments), and the optical film is applied to the 22-phase edge backlight module provided by the company for the luminance gain test (using the BMW instrument provided by 132725.doc TOPCON). The results are shown in Table 2. No

Table 2

From the results of Examples 1 to 8 in Table 2, it can be seen that the refractive index of the coating formed by the polymerizable renter of the present invention is higher than 153, and the higher the refractive index of the coating is, the brightness of the coating is applied to the backlight module. The higher the gain, the better the concentrating effect. 2. As is apparent from Tables 1 and 2, the compositions of Comparative Examples 9 to 1 did not effectively increase the refractive index because they did not contain the monomer of the formula (1). 3. As can be seen from Table 1, the composition of Comparative Example 11 was added with a monomer of formula (II) having a dilution effect to improve the leveling property thereof; and according to the results of Table 2, it was found that the combination was compared with Comparative Examples 9 and 10. The composition of Comparative Example 1 can slightly increase the refractive index by adding the monomer of the formula (1). However, from the results of Comparative Example 表 and Example 4 contained in Table 2, it is understood that the composition of Example 4 contains the monomer of the formula (I) in addition to the addition of the (π) monomer to improve the leveling property thereof. The composition of Example 4 has a better refractive index enhancement effect than the composition of Comparative Example 11 which does not contain the formula (1) 132725.doc -22-1379840. 4. From the results of Examples 4, 7 and 8 shown in Tables 1 and 2, it can be seen that the addition of the monomer of the formula (1) is accompanied by the presence or absence of the addition of the monomer of the formula (11) or the component (d_1). However, when the viscosity of the compositions of Examples 4, 7 and 8 was measured by a viscometer, the obtained viscosities were 130 cps, 18 〇 cps and 100 cps, respectively. It can be seen that the monomer and component (heart palpitations) of formula (II) are added. The monomer can further improve the leveling property of the composition without affecting the effect of the refractive index of the monomer of the formula (1). The above embodiments are merely illustrative of the embodiments of the present invention, and the technology of the present invention is illustrated. The features are not intended to limit the scope of the present invention. Any changes or arrangements that can be easily accomplished without departing from the technical spirit and spirit of the present invention are within the scope of the present invention. The scope of the invention is as set forth in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an embodiment of an optical film of the present invention. [Description of main components] 1 substrate 2 coating a thickness 132725.doc -23-

Claims (1)

1379840 义夂1修正^ 〇97129379 Patent application case 尚尚 I Chinese application patent scope replacement (101 years S q patent application scope: 1. A polymerizable composition comprising: (a) at least one formula (I ) monomer: Χι and X2 are each independently C or C1-C4 alkyl; Υι, 丫3 and Υ4 are each independently Η, Cl-C4 alkyl or OH; and a and b are each independently selected from 〇 to 5 (b) - photoinitiator, and (d) - acrylate monomer of formula (II): R3 is a straight or branched hydrocarbon group of 2 to 6 carbon atoms, optionally separated by one or more heteroatoms selected from oxygen and sulfur; and η is an integer from 0 to 3, wherein the polymerizable The total weight of the composition is 'the amount of the monomer of the formula (1) 132725-1010801.doc is at least 1% by weight and the amount of the monomer of the formula (II) is from 1% by weight to 8〇2 by weight. Wherein X丨' χ2 'Y〗, γ2, I and A are each independently Η or methyl; and a and b are each independently selected from 1 to 3 integers. 3. The composition of claim 1 wherein Formula (I) single system (Ιι): The amount of the monomer of the formula (I) is from 1 weight 〇 / 〇 to 50 weight 0 / 〇. 5. A composition according to the present invention, wherein the monomer of the formula (I) is used in an amount of from 3 parts by weight to 5% by weight to 2 parts by weight based on the total weight of the polymerizable composition. The composition of claim 1, wherein the monomer of the formula (I) is used in an amount of from 4% by weight to 2% by weight based on the total weight of the polymerizable composition. 7. The composition of claim i, wherein the photoinitiator is selected from the group consisting of benzophenone, dibenzoethanolone, diphenylethylenedione, 2,2-dimethoxyanthracene, 2 - stupyl B-1, _ hydroxy-hydroxycyclohexyl phenyl ketone, 24,6-trimethyl benzhydryl bis-phenylphosphine oxide and combinations thereof. 8. The composition of claim i wherein the photoinitiator is used in an amount of Q] by weight based on the total weight of the composition. /. Up to (7) wt%. 9. For example. The composition of claim 1, wherein the total weight of the polymerizable composition <10 is a formula of 8% by weight to 70% by weight. 132725-101080I.doc • 2 - 1379840 〇 如 如 如 如 如 如 如 如 如 如 如 如 如 如 如 如 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' /〇. 11. The composition of claim 1, further comprising (du) selected from the group consisting of acesulfame, decyl propyl acrylate, 2-phenoxyethyl acrylate, trimethyl methacrylate triacrylate, 2-(pair) - cumene-phenoxy)-ethyl acrylate, propylene oxide neopentyl glycol diacrylate, ethoxylated trimethylol propyl triacrylate, propoxylated trimethylolpropane triacrylate An acrylate monomer of the group consisting of 'dipentaerythritol hexaacrylate' and a mixture thereof. 12. The composition of claim ,, wherein the acrylate monomer is used in an amount of 1% by weight based on the total weight of the polymerizable composition. Up to 80% by weight. 13. The composition of claim 1 further comprising (c) a crosslinking agent. 14. The composition of claim 13 which is (meth) acrylate urethane acrylate, polyester acrylate, epoxy acrylate or a combination thereof. Φ 15. The composition of claim 13 wherein the crosslinking agent is used in an amount of from 1% by weight to 60% by weight based on the total weight of the polymerizable composition. 1 6. The composition of claim π, wherein the crosslinking agent is used in an amount of from 1% by weight to 5% by weight based on the total weight of the polymerizable composition. 17. The composition of claim 13 wherein the crosslinking agent is used in an amount of from 25% by weight to 40% by weight based on the total weight of the polymerizable composition. 18. The composition of claim 1 further comprising an additive selected from the group consisting of a slip agent, an inorganic filler, a leveling agent, an antifoaming agent, an antistatic agent, and combinations thereof. 132 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Barium, calcium sulfate 'calcium carbonate, zirconia and combinations thereof. The composition of claim 16, wherein the inorganic filler has a particle size of up to 350 nm. No, wood A polymerizable composition comprising: (a) a monomer of formula (I): Χι and X2 are each independently Η or methyl; Υι, 丫2, 丫3 and 丫4 are each independently Η or methyl; a and b are each independently an integer selected from 1 to 3; (b) The photoinitiator is selected from the group consisting of benzophenone, diethanolone, diphenylethylenedione, 2,2-dimethoxy-1,2-diphenylacetamidine, 1-hydroxyl Cyclohexyl phenyl ketone, 2,4,6-trimethyl benzene f decyl diphenyl phosphine oxide and combinations thereof; (c) a crosslinking agent ' is selected from the group consisting of acrylates, methyl groups Aluminate, urethane acrylate, polyester acrylate, epoxy acrylate, and combinations thereof, and 132725-10I080l.doc -4- 1379840 (d) a monomer of the formula (ΙΙι) ·· φ wherein the monomer of the formula (I) is used in an amount of at least 1% by weight based on the total weight of the polymerizable composition, and the monomer of the formula (Ili) is used in an amount of 1% by weight. Up to 80 weight 22. The composition of claim 2, wherein the formula (1) is a single system. 23. An optical film comprising a coating formed by the polymerizable composition of claim 1 or 21, 24. The optical film of claim 23, wherein the coating forms a concentrating structure. 25. The optical film of claim 23, wherein the coating has a refractive index greater than 153. 26. The optical film of claim 23, wherein the coating has a refractive index of from 丨53 to 丨62, wherein the coating has a thickness of from 1 micron to 100. 27. The optical film of claim 23 is micron. 132725-1010801.doc